Abstract
Heterogenous banking supervision and regulation is often considered as the most important impediment for Pan-European Bank mergers. In this paper we identify other more fundamental reasons for a limited degree of cross-country integration in retail banking. We argue that the distribution of regional liquidity shocks may pose a natural limit to the extent of cross-border bank mergers. The paper derives the impact of different underlying stochastic structures on the optimal structure of cross regional bank mergers. Imposing a symmetry restriction on the underlying stochastic structure of liquidity shocks we find that benefits from diversification and the costs of contagion may be optimally traded off if banks from some but not from all regions merge. Under an additional monotonicity assumption full integration is only desirable if the number of regions with diverse risks is sufficiently large.
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References
Allen F, Gale D (2000) Financial contagion. J Polit Econ 108:1–33
Barros P, Berglöf E, Fulghieri P, Gual J, Mayer C, Vives X (2005) Integration of European banking: the way forward. Monit Eur Deregul 3
Diamond D, Dybvig P (1983) Bank runs, deposit insurance, and liquidity. J Polit Econ 91:401–419
Fecht F, Grüner HP (2004) Financial integration and systemic risk. CEPR Disuccion Paper No. 5253
Freixas X, Parigi B, Rochet, J-C (2000) Systemic risk, interbank relations, and liquidity provision by the Central Bank. J Money Credit Bank 32:611–638
Kashyap AK, Rajan R, Stein JC (2002) Banks as liquidity providers: an explanation for the coexistence of lending and deposit-taking. J Finance 57:33–73
Krugman P (1991) Geography and trade. MIT Press, Cambridge
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We would like to thank the anonymous referee, Marc Flannery, Frank Heid, Michael Koetter, Rowena Pecchenino and the editor, George Tavlas, as well as the conference participants of the 4th INFINITY Conference Dublin for helpful comments. The views expressed here are those of the authors and not necessarily those of the Deutsche Bundesbank.
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Fecht, F., Grüner, H.P. Limits to International Banking Consolidation. Open Econ Rev 19, 651–666 (2008). https://doi.org/10.1007/s11079-007-9060-6
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DOI: https://doi.org/10.1007/s11079-007-9060-6